Grade 12.9 Alloy Steel Black Oxide Hex Socket Head Cap Screw M3-M24

Manufactured in accordance with internationally recognized standards including DIN 912, ISO 4762, and equivalent GB specifications, Hex Socket Head Cap Screws are available in a variety of materials such as carbon steel, alloy steel, and stainless steel. Common strength grades include Class 8.8, 10.9, 12.9, A2-70, and A4-80, allowing users to select the appropriate mechanical properties and corrosion resistance for their application requirements.

Available in metric sizes typically ranging from M3 to M24, with customized dimensions available upon request, these fasteners can be supplied with various surface finishes including black oxide, zinc plating, zinc-nickel plating, hot-dip galvanizing, Dacromet, PTFE coating, and plain stainless steel finish. Precision manufacturing ensures consistent thread quality, dimensional accuracy, and reliable fastening performance. Combining high strength, versatility, and compliance with international standards, Hex Socket Head Cap Screws provide a dependable fastening solution for demanding industrial and engineering applications.